An IAB Tech Lab standard that lets app publishers declare which ad networks are authorized to sell their inventory.

Where do I put the app-ads.txt file?

At the root of the developer website listed in your App Store / Google Play page, e.g. https://studio.com/app-ads.txt.

What is a Certification Authority ID?

An optional TAG-ID of the ad system, the 4th field of an app-ads.txt record.

foodnetwork.com app-ads.txt check

foodnetwork.com is missing out on higher CPMs: its app-ads.txt has 1 invalid line. Buyers' crawlers skip invalid lines, so those sellers can't be verified.

Checked 19 Oct 2026. 319 lines, 194 unique records, 20 duplicates, 1 invalid lines, 8 ad networks detected.

Ad networks in foodnetwork.com/app-ads.txt

Google AdMob — accounts pub-7963287709351044, pub-5477046158330132, pub-8158312370285870 and 1 more: 4 lines in the file
PubMatic — accounts 158535, 163542, 156695: 3 lines in the file
Index Exchange — accounts 184605, 206278, 202522 and 2 more: 5 lines in the file
Amazon Publisher Services — accounts ad0e6606-1a76-43e0-9a65-68ee04f104e0, 28602881-7b62-4c70-a126-e937b558e364, 196ae52e-68da-41b3-82a8-6a2cd027d137 and 1 more: 4 lines in the file
Yahoo — accounts 59494, 59477: 2 lines in the file
OpenX — accounts 558598331, 557890910, 561711183 and 1 more: 4 lines in the file
Xandr (Microsoft) — account 17499: 1 line in the file
TripleLift — account 11243: 1 line in the file

Invalid lines

madhive.com, 0, DIRECT, b16d6d9e0982efe4

Corrected file: foodnetwork.com app-ads.txt (fixed).

FAQ

Does foodnetwork.com have an app-ads.txt?

Yes — https://foodnetwork.com/app-ads.txt has 319 lines (checked 19 Oct 2026).

Which ad networks does foodnetwork.com work with?

Its app-ads.txt lists Google AdMob, PubMatic, Index Exchange, Amazon Publisher Services, Yahoo, OpenX, Xandr (Microsoft), TripleLift.

Is the app-ads.txt of foodnetwork.com correct?